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How does lock work exactly?
...t has not yet executed
the corresponding Exit, the current
thread will block until the other
thread releases the object. It is
legal for the same thread to invoke
Enter more than once without it
blocking; however, an equal number of
Exit calls must be invoked before
other threads wai...
returning in the middle of a using block
...edletsky I'm sure it's because return statement makes the end of the using block inaccessible by any code paths. The end of the using block needs to be ran so the object can be disposed if needed.
– mekb
Jul 22 '19 at 11:21
...
How much faster is C++ than C#?
... flattened the 2d array to 1d to achieve better cache locality (contiguous block)
C# (.NET 4.6.1)
private static void TestArray()
{
const int rows = 5000;
const int columns = 9000;
DateTime t1 = System.DateTime.Now;
double[][] arr = new double[rows][];
for (int i = 0; i < ro...
Make .gitignore ignore everything except a few files
...rder:
For example, ignore everything in folder "application" except index.php and folder "config" pay attention to the order.
You must negate want you want first.
FAILS
application/*
!application/config/*
!application/index.php
WORKS
!application/config/*
!application/index.php
applicatio...
Relative URL to a different port number in a hyperlink?
...9 (replace your port as required)
<div>
<a href="http://<?php print
$_SERVER{'SERVER_NAME'}; ?>:8069"><img
src="images/example.png"/>Example Base (http)</a>
</div>
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...
How to remove/ignore :hover css style on touch devices
...UX.
CSS-only - use media queries
Place all your :hover rules in a @media block:
@media (hover: hover) {
a:hover { color: blue; }
}
or alternatively, override all your hover rules (compatible with older browsers):
a:hover { color: blue; }
@media (hover: none) {
a:hover { color: inherit; }
...
git:// protocol blocked by company, how can I get around that?
...
If this is an issue with your firewall blocking the git: protocol port (9418), then you should make a more persistent change so you don't have to remember to issue commands suggested by other posts for every git repo.
The below solution also just works for submod...
Variable declaration placement in C
... must pass the -pedantic flag.
The declaration of c at the start of a { } block is part of the C89 standard; the block doesn't have to be a function.
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“Cross origin requests are only supported for HTTP.” error when loading a local file
... ... the Ruby Gods say this works as well:
ruby -run -e httpd . -p 8080
PHP
Of course PHP also has its solution.
php -S localhost:8000
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Difference between VARCHAR and TEXT in MySQL [duplicate]
...up to 16 MB, LONGTEXT up to 4 GB. If you use LONGTEXT and get the data via PHP (at least if you use mysqli without store_result), you maybe get a memory allocation error, because PHP tries to allocate 4 GB of memory to be sure the whole string can be buffered. This maybe also happens in other langua...